Yā Sīn (Arabic: سورة يس‎ literally "O Sin is the 36th 'chapter' of the Qur'an with 83 ayah, and is one of the Meccan sura. It is given the title of "the Heart of the Qur'an" Opening with the Arabic letters "Yāʾ" and "Sīn", possibly referring to the Islamic prophet, Muhammad, since Ya also means "O" while "Sin" is often interpreted as indicating insan (human). The context seems to indicate this interpretation as well, as verses 3-6 specifically address the Prophet. Yasin is used as a name in the Islamic world. This chapter of the Qur'an covers many of the themes of the Qur'an, but primarily focused on arguments for belief in God.[3] The arguments arise in three forms: a historical parable, a reflection on the order in the universe, and lastly a discussion of resurrection and human accountabilit